Veronica Johnson

The D.C. region expects showers and storms on Saturday due to high humidity, increasing the risk of isolated flooding along and east of I-95. Though muggy, temperatures will reach mid-70s to low 80s this weekend. As a cold front moves through later in the week, mugginess levels are expected to drop significantly by Sunday, leading to drier air for Monday and Tuesday.

A flood watch is in effect for the D.C. region through Wednesday morning as heavy rainfall and thunderstorms threaten localized flooding. The National Weather Service warns of potential severe storms later in the week, with high temperatures and humidity contributing to unstable weather conditions.

The D.C. area will experience warm, humid conditions Saturday with isolated afternoon showers and thunderstorms. Storms are expected to intensify Sunday and Monday as a cold front and low pressure system approach, bringing potential severe weather, heavy rain, and gusty winds. The active weather pattern is projected to continue through the week with daily chances of showers and thunderstorms.

The DC region experienced a heat index of 110 on July 2, 2026, marking the start of a heat wave with record-breaking temperatures, including 102°F at Reagan National Airport. Extreme heat warnings are in effect through the Fourth of July, with cooling centers opening and potential storms forecasted for later in the week.

A dangerous heat wave is affecting the D.C. region, with temperatures potentially reaching 103°F and heat indices exceeding 107°F. Heat advisories are in effect until Sunday, and similar extreme heat is impacting parts of Michigan, Illinois, Ohio, and other states, prompting cooling centers and event cancellations.